Apparatus for generating ozone.



C. KNIPS & E. EY. .Y APPARATUS F/OB. GENERATING OZONE.

APPLICATION FILED SEPT. 7, 1910.

983,907; Patented 111610.14; 19111.42

II i" IWI l i I such, manner with zation of UNH-En siarns PATENT ernten.

CHRISTOPH KNIPS AND EDUARD SIEMENS & EIALSKE A. G., OF

EY, or CHARLOTTRNRURG, BERLIN, GERMANY, A CORPORATION or GERMANY.

GERMANY, ASSIGNORS TO APPARATUS FOR GEN ERATIN G' OZONE.

" Specification of Letters Patent.`

' Application led September 7, 1910. Serial No. 580,884..y

To all whom it may concern:

Be it known that and. EDU-ARD EY, subjects of the German Emperor andresiding at Charlottenburg, near Berlin, Germany, have invented certainnew and use-ful Improvements in Apparatus for Generating Ozone, of whichthe following is aspecification.

Our invention relates to apparatus for generating ozone.

In recently designed apparatus for generating ozone the glass tubes, inwhich ozone is generated by the action of electrical discharges .0n airor pure oxygen, -are cooled continuously by means of The tubes as wellas all the packing between the sameand the air chamber and t-hecollecting chamber for the ozonized mixture must take up the pressure inthe pipe supplying air or oxygen. In recently designed plants thispressure frequently at.- tains such a .height that the glass tubes crackand the joints leak. i

A prim-ary object of our invention is to remedy thisdefect. To this end,We subject the ozone tubes and the packing between them vand the ozonechamber to an equalizingpressurewhich can be increased until they are'perfectly relieved. For this purpose we firstly arrange that the coolwater flows in a closed conduit from a tank to the ozone apparatus. Thistank is connected in the pipe supplying air or oxygen under pressurethat it is impossible for water to overflow into this supply pipe, butthe pressure in thepipe is imparted to the water in the tank. In orderto prevent y steam being carried over from the tank. into the ozoneapparatus we preferably connect the tank in parallel with the apparatus.Secondly, we connect the -tank with the water chamber of theozoneapparatusin such manner that the water is able to circulate. Bycompletely closing the apparatus from the atmosphere we first obtainvperfect equali-y pressure for the ozone tubes and their packing, and,secondly, perfect circulationy ofthev cool water owing to thedifferences in temperature; constant consumption ofwater for coolingvthe ozone apparatus is therefore avoided.

One illustrative embodiment of our in vention is represented insectional elevation in the accompanying drawing.

Referring to the drawing` a designates an we, CHRISTOPH KNIPs flowingwater.

' the plant is in operation ozonizer having a compressed air pipe fconnected therewith, Z) designates an air chamber, c a cool waterchamber and Z an ozonic mixture chamber. An ozone tube e is so arrangedin the water chamber c that it connects the air chamber o with theozonic mixture chamber d, it being closed .fluid-tight from the waterchamber c. The air forced by an air-compressor through the pipe f flowsthrough the ozonizer in the direction indicated by the arrows and leavesit, enriched with ozone, through the pipe g leading to thel place whereit is used. Now according to our invention we provide a water tank 7Lconnected in such manner by two pipes z' and le with the water chamber othat when the water is kept through the pipe to the ozonizer where it isheated and rises through the pipe /c to the tanklz, where it is cooledagain. We also connect the water tank in parallel with the compressedair pipe f bypa branch pipe Z opening into the top part of the tank,that 1s above the water level, in order to prevent water overflowinginto the-supply -pipe f. In this manner the pressure in the supply pipeis imparted to the cool water and so to the ozone tube c andconsequently relieves it perfectly. Further, weconnect a three-way cockm in the supply pipe f in .front of its branch Z; by turning this cockto the left the pipe is connected with the consequently a complete fallof pressure is brought about in theentire plant, the ozone tilibe beingperfectly relieved in this event a so;

We claim l. In apparatus for generating ozone, the combination with anozonizer comprising an air chamber, a waterchamber and an ozone tubepassing through the water chamber into the air chamber; and a compressedair supply pipe connected with the air chamber, of a water tank, a pipeconnecting the tank with the water chamber, and a pipe connecting theupper part of the tank with the air supply pipe.

2. In apparatus for generating ozone, the combination with an ozonizercomprising an air chamber, a water chamber and an ozone tubey passingthrough the water lchamber into the air chamber; and a compressed airsupply pipe connected with the air chamber, of a watertank, a pipeconnected with atmosphere andv air chamber, a water ber, a return tio'wpipe connecting the water chamber with an upper part of the tank, a

branch of the air supply pipe connected with the top of the tank, andmeans in the air supply'pipe tor relieving the same and the artsconnected therewith Jfrom pressure above atmospheric.

4. In apparatus for generating ozone, the combination, with an ozonizercomprising an air chamber, a-water chamber and an ozone tube passingthrough the Water chamber into the air chamber; and a compressed airsupply pipe connected withv the air chamber, of a water tank, a pipeconnected with the bottom of the tank and with the water chamber, areturn flow pipe connectingthe Water chamber with an upper part of thetank, a branch of the air supply pipe connected with thel top of thetank, and a threeway cock in theair supply pipe in front of the branchthereof for connecting the same with .the atmosphere.

In testimony whereof, we have .signed our names to this specification inthe presence of two witnesses.

CHRISTOPH KNIPS. EDUARD EY.

Witnesses WOLDEMAR HAUPT, ARTHUR SGHROEDER.

